Samsung has expanded its portfolio with two network-printer color laser
multifunction device for small to medium workgroups. The models 6220FX
CLX-6250FX and CLX-can print, copy, scan and fax. Removing the previous
CLX-6200ND, CLX-6210FX and CLX-6240FX from.

Samsung
CLX-6250FX (Photo: Samsung)

The CLX-6220FX prints and copies according to the manufacturer for up to 20
pages per minute in color and black and white. The CLX-6250FX provides 24 pages
per minute. The effective print resolution is 9600 by 600 dpi. When scanning is
achieved 4800 times 4800 dpi.

Unlike the previous generation, the new MFPs need a longer warm up more. The
first page will print and excludes after 17 (CLX-6250FX), respectively 24
seconds. The memory capacity has increased from 128 to 256 MB. The CLX-6250FX is
compared to the previous CLX-6240FX also equipped with a powerful processor (700
MHz instead of 533) and can be an option for a 160-gigabyte hard drive and 512
MB of extended memory.

The standard paper tray holds up to 250 sheet multipurpose tray can be fitted
with up to 100 sheets. A second additional paper tray increases the volume by a
further 500 sheets. In addition, both devices have a duplex unit with an
automatic document feeder for up to 50 pages on board.

Samsung offers organized according to the monthly print volume, two different
toner quantities: the average Farbtonerreichweite is in the standard color
cartridges 2000 and 2500 black and white pages. The high-performance cartridges
achieve color and 5000 black and 4000 pages.

Other features of the multi-function devices include a variety of scan-to
functions, such as scan to e-mail, USB or FTP. With built-in hard drive are
printing functionality, such as "confidential print," "deferred printing", "test
pressure" or "Stored Print" is possible. It is operated by a four line LCD
display and a compass navigation. The maintenance can be with Samsung's
management tool "SyncThru Web Admin Service 5.0 perform" centrally over the
network, in which the equipment via Fast Ethernet port to be involved.

The multifunction devices are now commercially available. The CLX-6220FX cost
700 Euros, the CLX-6250FX 1058 Euro.

Reason is the increasing popularity of the iPhone and other mobile devices
such as e-book reader and Tablets. The number of mobile phones with NAND Flash
in 2010 increase by 13.8 percent. ISuppli estimates the industry's sales to 18.1
billion dollars.

iSuppli expects this year a growing demand for NAND flash memory, which
should lead to supply shortages and higher prices. The reason for these
developments to the market researchers say is the growing popularity of the
iPhone and other mobile devices such as e-book reader or Tablets.

The number of mobile phones with NAND flash is expected to increase by 13.8
percent, according to iSuppli 2010 to 732 millions. 2008, the growth rate was
1.6 percent.

NAND flash is used as a non-volatile memory in cell phones, MP3 players, USB
flash drives, memory cards and Solid State Drives (SSD). One of the largest
customer is Apple. It is estimated that the company buys 20 to 30 percent of the
world's available capacity, which it has secured long-term supply agreements
with Toshiba and other manufacturers.

"The success of the iPhone has triggered the development of a whole series of
competing smartphones," said Michael Yang, senior analyst for memory at iSuppli.
This included Motorola's Droid, Iris HTC, Palm and Google's Pre Nexus One.
Although some models relied on alternative storage solutions such as Micro-SD
cards tried, but all to achieve the storage capacity of the iPhone. "The good
promises to the demand for NAND."

The industry sales for 2010 iSuppli estimates that 18.1 billion U.S. dollars
(13.4 billion euros). This represents an increase of 34 percent compared to
2009. Last year, the increase was 14.8 percent.

In addition to smartphones also carry e-book reader and Tablet PCs with the
shortage. The latter comes from iSuppli, the average storage capacity from 32 to
64 GB. "It remains to be seen whether sales will meet the optimistic
expectations of manufacturers. The introduction of the Apple iPad could possibly
inspire the market," said Yang.

The
results obtained with NAND flash revenues climb, according to iSuppli 2013 to
almost 30 billion dollars per year (Image: iSuppli).

To ‘charge’ the PEMFC and produce your fuel gases, connect a DC
power source (it doesn’t have to be very clean, so long as there are no
big voltage spikes) in the normal positive-to-positive and
negative-to-negative arrangement. You should have some reccomended
charging specs from your supplier, but in case you don’t a common PEMFC
requires 1.7V to 2.0V, at 700mA for maximum charging rate. To
compensate for various internal resistances and innefficiencies, it’s
common to charge the FC with closer to 3V to ensure you get a good
current flowing into the cell. The easiest source to charge your FC is
a nice new pair of 1.5V AA alkaline cells.

Virtually the instant you connect power, you should see bubbles of
gas forming on the inside chambers of the FC. The chambers will fill
up, pushing the water out of the cell and into the storage tanks, and
then eventually filling the tanks with accumulated Hydrogen and Oxygen.

Once you’ve got some fuel saved up, you can use your PEMFC to power
a few devices. The output for a small typical single cell is nominally
0.6V @ 500mA, but often you’ll see closer to 1V @ 800mA when the cell
is freshly charged. You can connect multiple FCs in parallel or series
to increase the current or voltage output respectively. Some PEMFCs,
like the one used in Mr. Lobster, are actually two FCs back to back,
with a shared Hydrogen or Oxygen chamber.

Like most rechargeable power storage systems, the power output from
the FC will be fairly consistent at first, but gradually weakening as
the fuel supply runs out. Conveniently you can visually see how much
‘juice’ an FC has left just by looking at the tanks and checking how
full they are =D

One last note – you’ll probably find that most circuits need a fair
bit more than ~1V to work, and connecting multiple FCs in series can be
expensive, bulky, and annoying. Since the current output of even a
small FC is typically quite high, you can use a voltage booster circuit
to ‘trade in’ some of that extra current for more voltage. Take a look
at this example by OddBot to get started in the right direction.

Was first used in BYD F6 dual mode hybrid vehicle

At a press conference, BYD unveiled the world’s first iron battery
motor and gasoline engine-powered dual-mode hybrid vehicles F6DM, at
its core power battery is ET-POWER.

According to reports, F6DM use of hybrid electric vehicle system and
the system is a way to control the two kinds of hybrid power generators
and electric motors combine advanced technology, not only greatly
reduces fuel consumption and emissions, but also improved the
performance of power and manipulation to achieve a can charge, but also
fuel a variety of ways to add energy to achieve a true sense of the
word hybrid hybrid systems.

BYD president, Wang Chuanfu, said, DM is a “dual-mode” (DualMode)
abbreviation. If the pure electric referred to as EV, hybrid referred
to as HEV, the BYD DM electric car EV + HEV, in short, rechargeable
hybrid electric vehicles. This system will replace the
gasoline-electric mixing system, to become the world’s most mainstream
new energy automotive systems.

It is reported that BYD dual-mode electric vehicle has been declared
over 700 domestic and foreign patents. After a variety of state of the
vehicle under the vehicle testing, road conditions in the city can be
realized under the basic state of pure electric exercise of the BYD
Electric Vehicle Charging Station 10-minute quick charge up to 50% of
the electricity at home using ordinary socket slow fast charging, full
power has only 9 hours. According to introduction, the entire dual-mode
electric vehicle cost of the system is 5 million after the increase in
production costs can be greatly reduced, the car is expected to be
available second half of 2008 volume production.

It is understood that as the world’s largest battery market giants,
BYD factory from 10 years ago now, the rapid expansion of the speed
doubling every year, from 2.5 million capital to expand into the market
value of 30 billion yuan, from a single battery production to the ranks
of important diversification of the world’s mobile phone industry, the
integration of mobile phone parts supplier, from the repairer, selling
cars of the “outsider” to the production of single models F3 With over
10 million vehicles sold “miracle”, BYD only took a very a short time.

The industry have pointed out that BYD five years ago, cut into the
automotive industry, giving enterprises a strong development, while the
maturity of the iron battery business, meaning that BYD’s two main
industries - IT industry and automobile industry, battery-free seam
integration and docking, the two industries, the strategic realignment
will undoubtedly provide a strong impetus BYD follow-up development.

As automotive innovations, Wang Chuanfu BYD dual-mode electric
vehicles on the confidence in the future. He said that in dual-mode
electric vehicle to market next year, after the 2009 pure electric
vehicles will also be available. In addition to driving electric
vehicle industry chain, the BYD plans to iron battery into the notebook
computers, digital cameras, digital music players, digital industry
chain. Wang Chuanfu said that the current technology is not a major
obstacle, the main traditional lithium battery voltage of 3.7 volts,
slightly higher than the 3.3 volt-iron battery, once to solve voltage
problems, this new type of battery is undoubtedly the best alternatives
to lithium batteries, the market prospects immeasurably.

In
this paper the researchers set out to create simulations that examined
the impact of hydration and temperature on the positively charged
hydrated protons and water molecules. Understanding these dynamics
could lead to polymer membranes that are better engineered for
transporting protons while controlling electrode flooding by the water
molecules. One of the goals is to develop PEM membranes that need
little water.

Using
classical molecular dynamics simulations, the research team
investigated the impact of four levels of hydration and two different
temperatures. The scientists calculated structural properties such as
radial distribution functions, coordination numbers, and dynamical
properties such as diffusion coefficients of hydronium ions (H3O+) and
water molecules.

The results of their calculations showed
that protons and water molecules are bound to sulfonate groups in the
membrane at low hydration levels. As the hydration level increases, the
water molecules become free and form a network along which protons can
hop (Figure 2). This leads to a dramatic increase in proton
conductivity. Temperature was found to have a significant effect on the
absolute value of the diffusion coefficients for both water and
hydronium ions. These findings have helped in interpreting experimental
results that indicate a major structural change taking place in the
membrane with increasing hydration.

In
the second paper, the authors used all-atom molecular dynamics
simulations to systematically examine eight different levels of
membrane hydration to closely mirror two experimental studies. They
also simulated bulk water to develop a novel criterion to identify free
water in Nafion. This enabled them to quantify the fraction of free,
weakly bound, and bound water molecules in the membrane as a function
of hydration.

The researchers found that at low hydration
levels, strong binding of hydronium ions to sulfonate groups prevents
transport of protons. Multiple sulfonate groups surrounding the
hydronium ions in bridging configurations hinder the hydration of the
hydronium and the structural diffusion of protons (Figure 3). As the
hydration level increases, the water molecules mediate the interaction
between hydronium ions and sulfonate groups, moving them farther apart.
These results provide atomic-level insights into structural changes
observed in Nafion by infrared spectroscopy.

Group in Shandong Xinfa aluminum ingot production and marketing dynamics

Shandong
Xinfa Group is a set of power generation, heating, electrolytic
aluminum, alumina, carbon, fluoride salts, in the high-density, MSG,
aluminum deep-processing industrial chain in one of the top ten large
modern enterprise group. Annual output of 640,000 tons aluminum ingots,
aluminum ingots the mainstream of today's factory Price 19.05 thousand
yuan / ton, inventory is acceptable shipment in good condition.

The International Society of solar cell technology, “EU PVSEC” on
the University of Tsukuba made public to the use of quantum dot solar
cell of the photoelectric conversion efficiency increased to 8.54% of
the technological achievements. Quantum-dot solar cells can reach the
theoretical conversion efficiency of more than 60% of well-known is the
future of efficient solar cells is one candidate.

Developed by the latitude c840 battery
University of Tsukuba quantum-dot solar cells are pn junction between
the multiple quantum dot layers stacked quantum-dot superlattice-based
products, in the 1cm square alternately superimposed on the GaAs
substrate 30, and 30-layer InAs layer GaNAs super-crystal lattice
structure. Its characteristics are in the GaNAs formed on InAs, in
order to ease the underlying strain between the lattice can be
self-generating high-3 ~ 4nm, diameter of 20 ~ 30nm multiple quantum
dots.

Lead to quantum-dot superlattice structure created between combination, in the conduction band formed on micro- sony vgp-bps2a battery, so that the use of various wavelengths of light possible.

Improve the quantum-dot superlattice type of conversion efficiency
of the need to address the following issues: (1) reduce the thickness
of the middle layer, and strengthen the integration between the quantum
dots; (2) to enable the close arrangement of quantum dots; (3) stacking
more layers . The University of Tsukuba to the middle layer thickness
reduced to half of the past – 20nm, so that conversion efficiency from
3.7% to 8.54%. University of Tsukuba in the future goal is to 2020 sony vgp-bps2c battery, the conversion efficiency increased to 40%.